Exactly, if you don't have a good success rate on 6-5, stick with 5-5, you loose only 21 medals but you get them.
And to add to the discussion:
980k for my Slice team, with a good helper between 94-97k, I loose about 25% of 6-5.
So yeah, back to farming some gold coins to level up the girls, these last 2 weeks took a heavy toll on my stash.
edit: screw that, I'm gonna stick to 5-5 to get some Flowering Hearts. I don't have enough 2nd affection girls.